Fill a removable bottom cake mold with chocolate-covered wafer biscuits, arranging them all over the bottom and around the edges of the mold, leaving a gap in the center. Keep in the fridge.
Into the blender, add the table cream, the condensed milk, and the lemon juice, blend it all very well until combined. Add the unflavored gelatin powder previously hydrated according to the package instructions and blend it all again.
Pour the lemon filling into the mold and leave it in the fridge for 3 to 4 hours.
Whip the whipped cream until stiff peaks are formed, pour it over the pie and spread evenly.
Top it with some lemon zest.
Help yourself.